202220111121 has 16 divisors (see below), whose sum is σ = 318085091328. Its totient is φ = 111826789200.

The previous prime is 202220111113. The next prime is 202220111189. The reversal of 202220111121 is 121111022202.

It is not a de Polignac number, because 202220111121 - 2³ = 202220111113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202220111121.

It is not an unprimeable number, because it can be changed into a prime (202220111021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155314335 + ... + 155315636.

It is an arithmetic number, because the mean of its divisors is an integer number (19880318208).

Almost surely, 2^202220111121 is an apocalyptic number.

202220111121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202220111121 is a deficient number, since it is larger than the sum of its proper divisors (115864980207).

202220111121 is a wasteful number, since it uses less digits than its factorization.

202220111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310630012.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202220111121 its reverse (121111022202), we get a palindrome (323331133323).

The spelling of 202220111121 in words is "two hundred two billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty-one".